BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 54

Troubleshooting

Troubleshooting Guide - General

 

 

 

 

 

 

 

 

pROBlEM

 

CAUSE

 

CORRECTIVE ACTION

 

 

 

 

 

 

 

 

Head assembly does not bevel

1.

Bevel detent pin is engaged.

- Pull out 33.9° bevel detent pin, then

 

 

to desired position.

 

and locks bevel angle at 33.9°.

 

rotate pin 1/4 turn to keep out.

 

 

 

2.

Bevel range selector knob

-

Change bevel range selector

 

 

 

 

setting limits movement.

 

knob position (see page 41).

 

 

 

 

 

 

 

 

Blade hits table.

Misalignment.

-

Authorized service.

 

 

 

 

 

 

 

 

Angle of cut not accurate.

Angle stops at 0° or 45° need

-

See Adjustments section

 

 

 

adjustment.

 

(pages 20-25).

 

 

 

 

 

 

 

 

 

Cannot rotate table to change miter

1.

Miter lock knob is tightened.

-

Turn miter lock knob

 

 

angle.

 

 

 

counterclockwise to loosen.

 

 

 

2.

Miter detent lever is engaged with

-

Pull up on miter detent lever to

 

 

 

 

a detent (slot) in detent plate.

 

disengage from detent slot (see

 

 

 

 

 

 

page 33).

 

 

 

3. Sawdust accumulation.

-

Vacuum or blow out dust around

 

 

 

 

 

 

turntable; wear eye protection.

 

 

 

 

 

 

 

 

 

Head assembly will not fully raise

1.

Head assembly lock pin is

-

Pull out lock pin, allowing head

 

 

or blade guard will not fully close.

 

engaged.

 

assembly to go up (see

 

 

 

 

 

 

page 17).

 

 

 

2.

Cover plate not tightened after

-

See Removing and Installing

 

 

 

 

replacing blade.

 

Blades on pages 13-14.

 

 

 

3. Sawdust accumulation.

-

Clean head assembly.

 

 

 

4.

Sawdust accumulation.

-

Authorized service.

 

 

 

 

 

 

 

 

Blade binds, jams, burns wood.

1. Improper operation.

-

See Saw Operations

 

 

Rough cuts.

 

 

 

section.

 

 

 

2.

Dull blade.

-

Replace or sharpen blade.

 

 

 

3.

Improper blade.

-

Replace with 12" diameter blade

 

 

 

 

 

 

designed for material being cut.

 

 

 

4.

Bent blade.

-

Replace blade.

 

 

 

 

 

 

 

Head assembly slides forward and

Mechanism lock lever is

Pull up on mechanism lock lever

 

 

back when making a chop cut.

disengaged.

tab to engage (see page 18).

 

 

 

 

 

 

 

Bevel angle is not securely held

Bevel lock lever needs tension

Increase bevel lock lever force by

 

 

when bevel lock lever is pushed.

adjustment.

adjusting tension nut (see page 25).

 

 

 

 

 

 

 

Glide mechanism is difficult to

Glide movement controller is set

Loosen two screws on the

 

 

move forward and back.

too tight.

movement controller (see page 17).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54.

Page 54
Image 54
Bosch Power Tools GCM12SD manual Troubleshooting Guide General